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Made two render calls to circumvent vertex limitation of geometry shader.

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Faerbit 2015-03-01 17:01:41 +01:00
parent 8c34df49b7
commit b61e7df089
1 changed files with 14 additions and 3 deletions
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17
data/shader/flame.gsh
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@ -2,6 +2,7 @@
uniform mat4 viewProjectionMatrix; uniform mat4 viewProjectionMatrix;
uniform float time; uniform float time;
uniform bool bottom;
layout(points) in; layout(points) in;
layout(triangle_strip, max_vertices = 256) out; layout(triangle_strip, max_vertices = 256) out;
@ -26,11 +27,21 @@ float radiusFunction(float x) {
void main() { void main() {
float resolution = 8.0; float resolution = 8.0;
float step = abs(end-begin)/resolution; float step = abs(end-begin)/resolution/2.0;
for (float i = begin; i<end; i+=step) { float i = 0.0;
float render_end = 0.0;
if (bottom) {
i = begin;
render_end = (end-begin)/2.0+step;
}
else {
i = (end-begin)/2.0;
render_end = end;
}
for (i; i<render_end-step; i+=step) {
float downRadius = radiusFunction(i); float downRadius = radiusFunction(i);
float upRadius = 0.0f; float upRadius = 0.0f;
if (i != end-step) { if (i < end - (step+0.0001)) {
upRadius = radiusFunction(i+step); upRadius = radiusFunction(i+step);
} }
for (int j = 0; j<resolution; j++) { for (int j = 0; j<resolution; j++) {