54 lines
1.2 KiB
GLSL
54 lines
1.2 KiB
GLSL
#version 430
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uniform mat4 projection;
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uniform mat4 view;
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uniform vec3 quad1, quad2;
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layout(points) in;
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layout(triangle_strip) out;
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layout(max_vertices = 4) out;
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in vec3 color_pass[];
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in float lifetime_pass[];
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in float size_pass[];
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in int type_pass[];
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smooth out vec2 tex_coords;
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flat out vec4 color_part;
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void main() {
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if(type_pass[0] != 0) {
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// This is not a generator particle
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vec3 old_pos = gl_in[0].gl_Position.xyz;
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float size = size_pass[0];
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mat4 view_projection_matrix = projection * view;
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color_part = vec4(color_pass[0], lifetime_pass[0]);
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vec3 pos = old_pos + (-quad1 - quad2) * size;
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tex_coords = vec2(0.0, 0.0);
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gl_Position = view_projection_matrix * vec4(pos, 1.0);
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EmitVertex();
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pos = old_pos + (-quad1 + quad2) * size;
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tex_coords = vec2(0.0, 1.0);
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gl_Position = view_projection_matrix * vec4(pos, 1.0);
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EmitVertex();
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pos = old_pos + (quad1 - quad2) * size;
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tex_coords = vec2(1.0, 0.0);
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gl_Position = view_projection_matrix * vec4(pos, 1.0);
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EmitVertex();
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pos = old_pos + (quad1 + quad2) * size;
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tex_coords = vec2(1.0, 1.0);
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gl_Position = view_projection_matrix * vec4(pos, 1.0);
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EmitVertex();
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EndPrimitive();
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}
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} |