Added shadow maps
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Vladislav Khorev committed
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a47306533e
commit
d8795ec076
15 files changed
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@@ -249,7 +249,11 @@ void Character::draw(Renderer& renderer) {
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}
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void Character::prepareGpuSkinningVBOs(AnimationData& anim) {
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if (anim.gpuSkinningPrepared) return;
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if (anim.gpuSkinningPrepared)
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{
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return;
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}
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anim.model.PrepareGpuSkinningData();
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@@ -284,13 +288,18 @@ void Character::prepareGpuSkinningVBOs(AnimationData& anim) {
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void Character::drawGpuSkinning(Renderer& renderer) {
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AnimationState drawState = resolveActiveState();
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auto it = animations.find(drawState);
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if (it == animations.end() || !texture) return;
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if (it == animations.end() || !texture)
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{
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return;
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}
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auto& anim = it->second;
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prepareGpuSkinningVBOs(anim);
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if (anim.skinningMatrices.empty()) return;
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if (anim.skinningMatrices.empty())
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{
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return;
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}
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static const std::string skinningShaderName = "skinning";
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static const std::string boneMatricesUniform = "uBoneMatrices[0]";
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@@ -354,4 +363,217 @@ void Character::drawGpuSkinning(Renderer& renderer) {
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renderer.shaderManager.PopShader();
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}
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// ==================== Shadow depth pass ====================
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void Character::drawShadowDepth(Renderer& renderer) {
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if (useGpuSkinning) {
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drawShadowDepthGpuSkinning(renderer);
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} else {
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drawShadowDepthCpu(renderer);
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}
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}
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void Character::drawShadowDepthCpu(Renderer& renderer) {
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AnimationState drawState = resolveActiveState();
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auto it = animations.find(drawState);
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if (it == animations.end()) return;
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// The caller has already pushed the shadow_depth shader and the
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// light's projection + view onto the renderer stacks.
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renderer.PushMatrix();
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renderer.TranslateMatrix({ position.x(), position.y(), position.z() });
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renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(-facingAngle, Eigen::Vector3f::UnitY())).toRotationMatrix());
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renderer.ScaleMatrix(modelScale);
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renderer.RotateMatrix(modelCorrectionRotation.toRotationMatrix());
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auto& anim = it->second;
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anim.modelMutable.AssignFrom(anim.model.mesh);
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anim.modelMutable.RefreshVBO();
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renderer.DrawVertexRenderStruct(anim.modelMutable);
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renderer.PopMatrix();
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}
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void Character::drawShadowDepthGpuSkinning(Renderer& renderer) {
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AnimationState drawState = resolveActiveState();
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auto it = animations.find(drawState);
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if (it == animations.end()) return;
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auto& anim = it->second;
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prepareGpuSkinningVBOs(anim);
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if (anim.skinningMatrices.empty()) return;
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static const std::string shadowSkinningShader = "shadow_depth_skinning";
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static const std::string boneMatricesUniform = "uBoneMatrices[0]";
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// Switch to the skinning depth shader (caller has the static depth shader active).
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renderer.shaderManager.PushShader(shadowSkinningShader);
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renderer.PushMatrix();
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renderer.TranslateMatrix({ position.x(), position.y(), position.z() });
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renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(-facingAngle, Eigen::Vector3f::UnitY())).toRotationMatrix());
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renderer.ScaleMatrix(modelScale);
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renderer.RotateMatrix(modelCorrectionRotation.toRotationMatrix());
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renderer.RenderUniformMatrix4fvArray(boneMatricesUniform,
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static_cast<int>(anim.skinningMatrices.size()), false,
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anim.skinningMatrices[0].data());
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#ifndef EMSCRIPTEN
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#ifndef __ANDROID__
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if (anim.bindPoseMutable.vao) {
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glBindVertexArray(anim.bindPoseMutable.vao->getBuffer());
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renderer.shaderManager.EnableVertexAttribArrays();
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}
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#endif
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#endif
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glBindBuffer(GL_ARRAY_BUFFER, anim.bindPoseMutable.positionVBO->getBuffer());
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renderer.VertexAttribPointer3fv("vPosition", 0, NULL);
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if (anim.bindPoseMutable.texCoordVBO) {
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glBindBuffer(GL_ARRAY_BUFFER, anim.bindPoseMutable.texCoordVBO->getBuffer());
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renderer.VertexAttribPointer2fv("vTexCoord", 0, NULL);
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}
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneIndices0VBO->getBuffer());
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renderer.VertexAttribPointer4fv("aBoneIndices0", 0, NULL);
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneIndices1VBO->getBuffer());
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renderer.VertexAttribPointer2fv("aBoneIndices1", 0, NULL);
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneWeights0VBO->getBuffer());
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renderer.VertexAttribPointer4fv("aBoneWeights0", 0, NULL);
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneWeights1VBO->getBuffer());
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renderer.VertexAttribPointer2fv("aBoneWeights1", 0, NULL);
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glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(anim.bindPoseMutable.data.PositionData.size()));
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renderer.PopMatrix();
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renderer.shaderManager.PopShader();
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}
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// ==================== Main pass with shadows ====================
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void Character::drawWithShadow(Renderer& renderer, const Eigen::Matrix4f& lightFromCamera, GLuint shadowMapTex, const Eigen::Vector3f& lightDirCamera) {
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if (useGpuSkinning) {
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drawGpuSkinningWithShadow(renderer, lightFromCamera, shadowMapTex, lightDirCamera);
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} else {
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drawCpuWithShadow(renderer, lightFromCamera, shadowMapTex, lightDirCamera);
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}
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}
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void Character::drawCpuWithShadow(Renderer& renderer, const Eigen::Matrix4f& lightFromCamera, GLuint shadowMapTex, const Eigen::Vector3f& lightDirCamera) {
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AnimationState drawState = resolveActiveState();
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auto it = animations.find(drawState);
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if (it == animations.end() || !texture) return;
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static const std::string shadowShader = "default_shadow";
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renderer.shaderManager.PushShader(shadowShader);
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renderer.RenderUniform1i(textureUniformName, 0);
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renderer.RenderUniform1i("uShadowMap", 1);
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renderer.RenderUniformMatrix4fv("uLightFromCamera", false, lightFromCamera.data());
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renderer.RenderUniform3fv("uLightDir", lightDirCamera.data());
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(GL_TEXTURE_2D, shadowMapTex);
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glActiveTexture(GL_TEXTURE0);
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renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
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static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
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Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
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renderer.PushMatrix();
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renderer.TranslateMatrix({ position.x(), position.y(), position.z() });
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renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(-facingAngle, Eigen::Vector3f::UnitY())).toRotationMatrix());
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renderer.ScaleMatrix(modelScale);
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renderer.RotateMatrix(modelCorrectionRotation.toRotationMatrix());
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auto& anim = it->second;
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anim.modelMutable.AssignFrom(anim.model.mesh);
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anim.modelMutable.RefreshVBO();
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glBindTexture(GL_TEXTURE_2D, texture->getTexID());
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renderer.DrawVertexRenderStruct(anim.modelMutable);
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renderer.PopMatrix();
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renderer.PopProjectionMatrix();
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renderer.shaderManager.PopShader();
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}
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void Character::drawGpuSkinningWithShadow(Renderer& renderer, const Eigen::Matrix4f& lightFromCamera, GLuint shadowMapTex, const Eigen::Vector3f& lightDirCamera) {
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AnimationState drawState = resolveActiveState();
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auto it = animations.find(drawState);
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if (it == animations.end() || !texture) return;
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auto& anim = it->second;
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prepareGpuSkinningVBOs(anim);
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if (anim.skinningMatrices.empty()) return;
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static const std::string skinningShadowShader = "skinning_shadow";
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static const std::string boneMatricesUniform = "uBoneMatrices[0]";
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renderer.shaderManager.PushShader(skinningShadowShader);
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renderer.RenderUniform1i(textureUniformName, 0);
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renderer.RenderUniform1i("uShadowMap", 1);
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renderer.RenderUniformMatrix4fv("uLightFromCamera", false, lightFromCamera.data());
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renderer.RenderUniform3fv("uLightDir", lightDirCamera.data());
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(GL_TEXTURE_2D, shadowMapTex);
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glActiveTexture(GL_TEXTURE0);
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renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
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static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
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Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
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renderer.PushMatrix();
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renderer.TranslateMatrix({ position.x(), position.y(), position.z() });
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renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(-facingAngle, Eigen::Vector3f::UnitY())).toRotationMatrix());
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renderer.ScaleMatrix(modelScale);
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renderer.RotateMatrix(modelCorrectionRotation.toRotationMatrix());
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renderer.RenderUniformMatrix4fvArray(boneMatricesUniform,
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static_cast<int>(anim.skinningMatrices.size()), false,
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anim.skinningMatrices[0].data());
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glBindTexture(GL_TEXTURE_2D, texture->getTexID());
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#ifndef EMSCRIPTEN
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#ifndef __ANDROID__
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if (anim.bindPoseMutable.vao) {
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glBindVertexArray(anim.bindPoseMutable.vao->getBuffer());
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renderer.shaderManager.EnableVertexAttribArrays();
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}
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#endif
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#endif
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glBindBuffer(GL_ARRAY_BUFFER, anim.bindPoseMutable.positionVBO->getBuffer());
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renderer.VertexAttribPointer3fv("vPosition", 0, NULL);
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if (anim.bindPoseMutable.texCoordVBO) {
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glBindBuffer(GL_ARRAY_BUFFER, anim.bindPoseMutable.texCoordVBO->getBuffer());
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renderer.VertexAttribPointer2fv("vTexCoord", 0, NULL);
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}
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// Bind normals for diffuse lighting (skinning_shadow shader skins them)
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if (anim.bindPoseMutable.normalVBO) {
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glBindBuffer(GL_ARRAY_BUFFER, anim.bindPoseMutable.normalVBO->getBuffer());
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renderer.VertexAttribPointer3fv("vNormal", 0, NULL);
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}
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneIndices0VBO->getBuffer());
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renderer.VertexAttribPointer4fv("aBoneIndices0", 0, NULL);
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneIndices1VBO->getBuffer());
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renderer.VertexAttribPointer2fv("aBoneIndices1", 0, NULL);
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneWeights0VBO->getBuffer());
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renderer.VertexAttribPointer4fv("aBoneWeights0", 0, NULL);
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glBindBuffer(GL_ARRAY_BUFFER, anim.boneWeights1VBO->getBuffer());
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renderer.VertexAttribPointer2fv("aBoneWeights1", 0, NULL);
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glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(anim.bindPoseMutable.data.PositionData.size()));
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renderer.PopMatrix();
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renderer.PopProjectionMatrix();
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renderer.shaderManager.PopShader();
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}
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} // namespace ZL
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