From d0e18bdb7924c71cdca8dd983711171d87ef28be Mon Sep 17 00:00:00 2001 From: Benjamin Barenblat Date: Mon, 17 Jan 2022 23:12:32 -0500 Subject: glplanet, an OpenGL-based planetary renderer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit glplanet draws Earth like it currently appears from space, putting nighttime areas in shadow and daytime areas in light. It’s modeled after Xplanet (http://xplanet.sourceforge.net/), but whereas Xplanet is entirely a CPU-resident program, glplanet draws using OpenGL. It’s thus much less resource-intensive, particularly when using high-resolution textures. --- src/vertex.glsl | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 src/vertex.glsl (limited to 'src/vertex.glsl') diff --git a/src/vertex.glsl b/src/vertex.glsl new file mode 100644 index 0000000..edad07e --- /dev/null +++ b/src/vertex.glsl @@ -0,0 +1,30 @@ +// Copyright 2021 Benjamin Barenblat +// +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#version 150 + +in vec3 cartesian_position; +in vec2 vertex_geographic_position; +in vec2 vertex_texture_coordinate; + +uniform mat4 mvp; + +out vec3 model_cartesian_position; +out vec2 texture_coordinate; + +void main() { + gl_Position = mvp * vec4(cartesian_position, 1.0); + model_cartesian_position = cartesian_position; + texture_coordinate = vertex_texture_coordinate; +} -- cgit v1.2.3