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Simon Ser 677a3f2f88 render/gles2: default to highp if available ... The spec [1] says that the maximum value for a mediump float is at least 2¹⁴ in section 4.5.2. However, when using a 4k resolution texture coordinates will exceed this value. This causes issues on drivers which implement mediump as a 16-bit [2]. Switch to highp. There's a twist: on GLES2, support for highp is optional. So we need to guard it with cute GL_FRAGMENT_PRECISION_HIGH ifdefs. [1]: https://registry.khronos.org/OpenGL/specs/es/2.0/GLSL_ES_Specification_1.00.pdf [2]: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21082		2 years ago
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common.vert	render/gles2: de-duplicate vertex shaders	2 years ago
embed.sh	render/gles2: move shaders to individual files	2 years ago
meson.build	render/gles2: de-duplicate vertex shaders	2 years ago
quad.frag	render/gles2: default to highp if available	2 years ago
tex_external.frag	render/gles2: default to highp if available	2 years ago
tex_rgba.frag	render/gles2: default to highp if available	2 years ago
tex_rgbx.frag	render/gles2: default to highp if available	2 years ago