add blend

SparkEmitter.cpp

@@ -54,9 +54,22 @@ namespace ZL {
 			return;
 		}
 
-		for (const auto& particle : particles) {
-			if (!particle.active) continue;
+		std::vector<std::pair<const SparkParticle*, float>> sortedParticles;
+		sortedParticles.reserve(getActiveParticleCount());
 
+		for (const auto& particle : particles) {
+			if (particle.active) {
+				sortedParticles.push_back({ &particle, particle.position.v[2] });
+			}
+		}
+
+		std::sort(sortedParticles.begin(), sortedParticles.end(),
+			[](const auto& a, const auto& b) {
+				return a.second > b.second;
+			});
+
+		for (const auto& [particlePtr, depth] : sortedParticles) {
+			const auto& particle = *particlePtr;
 			Vector3f pos = particle.position;
 			float size = 0.04f * particle.scale;
 
@@ -116,6 +129,9 @@ namespace ZL {
 
 		glBindTexture(GL_TEXTURE_2D, texture->getTexID());
 
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE);// Аддитивное смешивание для эффекта свечения
+
 		renderer.PushMatrix();
 		renderer.LoadIdentity();
 		renderer.TranslateMatrix({ 0, 0, -1.0f * zoom });
@@ -124,6 +140,9 @@ namespace ZL {
 
 		renderer.PopMatrix();
 		renderer.PopProjectionMatrix();
+
+		glDisable(GL_BLEND);
+
 		renderer.DisableVertexAttribArray(vPositionName);
 		renderer.DisableVertexAttribArray(vTexCoordName);
 		renderer.shaderManager.PopShader();