Add GPUParticles to the OpenGL3 renderer.

This includes collision (2D SDF, Box, Sphere, Heightmap),
attraction (Box, Sphere), and all sorting modes.

This does not include 3D SDF collisions, trails, or
manual emission.

1 files changed, 15 insertions, 3 deletions

diff --git a/drivers/gles3/effects/copy_effects.cpp b/drivers/gles3/effects/copy_effects.cpp
index 3acbcf6b53..b552b52cd5 100644
--- a/drivers/gles3/effects/copy_effects.cpp
+++ b/drivers/gles3/effects/copy_effects.cpp
@@ -115,13 +115,21 @@ CopyEffects::~CopyEffects() {
 }
 
 void CopyEffects::copy_to_rect(const Rect2 &p_rect) {
-	copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_COPY_SECTION);
+	bool success = copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_COPY_SECTION);
+	if (!success) {
+		return;
+	}
+
 	copy.shader.version_set_uniform(CopyShaderGLES3::COPY_SECTION, p_rect.position.x, p_rect.position.y, p_rect.size.x, p_rect.size.y, copy.shader_version, CopyShaderGLES3::MODE_COPY_SECTION);
 	draw_screen_quad();
 }
 
 void CopyEffects::copy_screen() {
-	copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_DEFAULT);
+	bool success = copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_DEFAULT);
+	if (!success) {
+		return;
+	}
+
 	draw_screen_triangle();
 }
 
@@ -151,7 +159,11 @@ void CopyEffects::bilinear_blur(GLuint p_source_texture, int p_mipmap_count, con
 }
 
 void CopyEffects::set_color(const Color &p_color, const Rect2i &p_region) {
-	copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_SIMPLE_COLOR);
+	bool success = copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_SIMPLE_COLOR);
+	if (!success) {
+		return;
+	}
+
 	copy.shader.version_set_uniform(CopyShaderGLES3::COPY_SECTION, p_region.position.x, p_region.position.y, p_region.size.x, p_region.size.y, copy.shader_version, CopyShaderGLES3::MODE_SIMPLE_COLOR);
 	copy.shader.version_set_uniform(CopyShaderGLES3::COLOR_IN, p_color, copy.shader_version, CopyShaderGLES3::MODE_SIMPLE_COLOR);
 	draw_screen_quad();