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update DrawRect2D shaders

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This commit is contained in:
hyzboy 2020-07-08 15:43:51 +08:00
parent 09f5818143
commit 9ce56221ff
2 changed files with 16 additions and 6 deletions
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17
shader/DrawRect2D.geom
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@ -3,15 +3,20 @@
layout (points) in;
layout (triangle_strip,max_vertices=4) out;
layout(location=0) in vec4 GeometryTexCoord[];
layout(location=0) out vec2 FragmentTexCoord;
void main()
{
vec2 lt=gl_in[0].gl_Position.xy;
vec2 rb=gl_in[0].gl_Position.zw;
vec2 vlt=gl_in[0].gl_Position.xy;
vec2 vrb=gl_in[0].gl_Position.zw;
vec2 tlt=GeometryTexCoord[0].xy;
vec2 trb=GeometryTexCoord[0].zw;
gl_Position=vec4(lt, vec2(0,1));EmitVertex();
gl_Position=vec4(lt.x,rb.y, vec2(0,1));EmitVertex();
gl_Position=vec4(rb.x,lt.y, vec2(0,1));EmitVertex();
gl_Position=vec4(rb, vec2(0,1));EmitVertex();
gl_Position=vec4(vlt, vec2(0,1));FragmentTexCoord=tlt; EmitVertex();
gl_Position=vec4(vlt.x, vrb.y, vec2(0,1));FragmentTexCoord=vec2(tlt.x,trb.y); EmitVertex();
gl_Position=vec4(vrb.x, vlt.y, vec2(0,1));FragmentTexCoord=vec2(trb.x,tlt.y); EmitVertex();
gl_Position=vec4(vrb, vec2(0,1));FragmentTexCoord=trb; EmitVertex();
EndPrimitive();
}

5
shader/DrawRect2D.vert
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@ -1,6 +1,7 @@
#version 450 core
layout(location = 0) in vec4 Vertex;
layout(location = 1) in vec4 TexCoord;
layout(binding=0) uniform WorldMatrix // hgl/math/Math.h
{
@ -20,6 +21,8 @@ layout(binding=0) uniform WorldMatrix // hgl/math/Math.h
vec2 viewport_resolution;
}world;
layout(location=0) out vec4 GeometryTexCoord;
void main()
{
vec4 lt=vec4(Vertex.xy,vec2(0,1));
@ -28,5 +31,7 @@ void main()
vec4 lt_fin=lt*world.ortho;
vec4 rb_fin=rb*world.ortho;
GeometryTexCoord=TexCoord;
gl_Position=vec4(lt_fin.xy,rb_fin.xy);
}