43 lines
1.5 KiB
GLSL
43 lines
1.5 KiB
GLSL
#line 2
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/*
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* Copyright (c) 2023 lax1dude. All Rights Reserved.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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precision lowp int;
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precision highp float;
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precision highp sampler2D;
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layout(location = 0) in vec2 a_position2f;
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layout(location = 1) in vec2 a_texcoord2f;
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out vec2 v_texcoord2f;
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out float v_occlusion1f;
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uniform sampler2D u_sunOcclusionValue;
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uniform mat3 u_sunFlareMatrix3f;
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void main() {
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v_occlusion1f = max(textureLod(u_sunOcclusionValue, vec2(0.5, 0.5), 0.0).r * 1.5 - 0.5, 0.0);
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if(v_occlusion1f == 0.0) {
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gl_Position = vec4(-10.0, -10.0, -10.0, 1.0);
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return;
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}
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v_texcoord2f = a_texcoord2f;
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vec3 pos3f = u_sunFlareMatrix3f * vec3(a_position2f, 1.0);
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gl_Position = vec4(pos3f.x, pos3f.y, 0.0, pos3f.z);
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}
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